Diff for "KAGRA/Subgroups/PEM/Meeting/200925/Agenda"

Differences between revisions 2 and 3

Weekly PEM meeting

2020/09/25(Fri) 17:00-
Regular meeting
Zoom2 : https://zoom.us/j/6676627462

Agenda

Conference issue

KIW7
- The 7th KAGRA International Workshop (National Central U., Taiwan), Dec. 18-20, 2020 (F2F meeting on Dec. 17-18)
- Yokozawa is supported by C2C program
- If you have interested in, please contact to Yokozawa
(Next JPS meeting is also online-meeting)

General issue

Interferometer status
- RSE lock trial
  - Continued to 30th Sep.
  - New suspension damping (modal damping)
  - ALS DARM and Find IR resonance
  - PRCL, SRCL control
Preparation for O4 work
- Toward opening the chamber
  - FFU on with temperature control
- Help the VIS cleaning
  - Cleaning the PEMs
Working style (COVID-19 related)
- Some collaborator came to Kamioka. Please contact to Yokozawa if you plan to go to Kamioka.
  - Fujikawa-san is staying in Kamioka now
Useful management tools
- Easy communication : Slack
  - We want to start using the slack by communication. I will send the message to candidate
- Task management : GitHub
- Software management : GitHub
- Papers : Overleaf
- Street view : Holobuilder

Jurnal paper issue

Details are here!

PTEP (2) : noise budget(K.Yamamoto) Check list, slack <<Analysis is ongoing>>
- Environmental part
  - Acoustic noise : Refer our PEM injection paper.
  - Seismic noise : summarise the actual seismic nois during O3GK? (who?)
  - OMC leg vibration : 12th - 16th Sep. ?
  - AC power lines : Coherence analysis is done (http://klog.icrr.u-tokyo.ac.jp/osl/?r=14848, Washimi)
  - Magnetic noise : skipped in this paper?
  - Newtonian : seismic newtonian -> from PTEP1 (or Francisca?) / water fluid newtonian -> skipped / air density -> skipped
- Line noise investigation
  - violin mode : Details of the RMS value will be not discuss in PTEP2.
PTEP (3) : CAL, DET, PEM, GIF (Yokozawa) <<Submitted>>
Acoustic injection paper (Washimi) <<WRITING>>
ICA for E-run/O3GK (Kume, Yokoyama) <<Analysis ON GOING>>
Portable PEMs (Yokozawa+) <<Start investigation>>

Preparation for O4

PEM tasks for O4 will be discussed after this meeting with SEO
- GND issue
- Cabling issue
- Cleaning the center area
Temperature control
- Cooler ON, compressor ON, FFU ON, ...
for O4 preparation
- GND issue
  - We measured the potential difference for SRM and PR2 rack
    - Need the investigation more
- water fluid (github207)
  - Discussion with Furuta-san & a company is started
    - When will company people come?
- read out of the lightning sensor (github182)
- Infrasound monitor @ Atotsu, Mozumi, (+ Toyama?)
- RF monitor
- tiltmeter
- RI detector
  - Rn : contact person -> Guillaume Pronostさん (ICRR, SK)
  - cosmic-ray : plastic scintillator?
  - gamma/neutron : 新学術地下宇宙
  - start from a geiger counter?
- gravity gradient (Newtonian noise)
  - Accelerometer for wall
  - Relative temperature monitor
  - Many seismometers
  - Superconducting Gravimeter
  - TOBA
PEM injection for O4
- Large speaker @ End station
- Magnetic injection by large coil

Progress report

Yokozawa
- Potential difference measurement at SRM and PR2 racks
- Washimi
  - Aacoustic injection paper overleaf
    - Contact with Robert about LIGO PEM paper.
    - PRCL BPC lime subtraction : klog14987
  - Water fluid monitor JGW-T2011949
    - Waiting a reply from the company.
  - Lightning sensor
    - Frequent lightning in Japan (KamioKaminari)
    - read out of the lightning sensor (github182)
- Fujikawa
  - Lock loss study
- Kume
  - ICA analysis -> suspended until JPS
- Omicron and hveto study(Someone)

Place for memo

KAGRA/Subgroups/PEM/Meeting/200925/Agenda (last edited 2020-09-25 16:25:19 by tatsuki.washimi)

-  ⇤ ← Revision 2 as of 2020-09-25 06:28:45 → 
  Size: 4804
  Editor: TakaakiYokozawa
  Comment:
+   ← Revision 3 as of 2020-09-25 06:57:00 → ⇥
  Size: 4821
  Editor: TakaakiYokozawa
  Comment:
-Deletions are marked like this.
+Additions are marked like this.
 Line 16:
-Line 20:
+Line 21:
+   * Continued to 30th Sep.
-Line 21:
+Line 23:
-   * The spectrum of the error signal of the ALS DARM was improved in higher frequency region
   * Now ASC control was implemented using TMS X/Y
    * Stable arm alignment
   * - 25th Sep.
  * Occasional day
   * 26th- Sep.
  * Preparation for O4 work
+   * ALS DARM and Find IR resonance
   * PRCL, SRCL control

 * Preparation for O4 work
  * Toward opening the chamber
   * FFU on with temperature control
  * Help the VIS cleaning
   * Cleaning the PEMs
-Line 30:
+Line 33:
-  * Situation is unclear, I will explain in this meeting.
-Line 44:
+Line 46:
-  * PTEP (2) : noise budget(K.Yamamoto) [[https://docs.google.com/spreadsheets/d/1Lz5RNxdjOhdZp6CBef-USUUPmyNTrhww9a7u39W7PSI/edit?usp=sharing|Check list]], [[https://gokagra.slack.com/archives/C015M111B5G|slack]] '''<<Analysis ON GOING>>'''
+  * PTEP (2) : noise budget(K.Yamamoto) [[https://docs.google.com/spreadsheets/d/1Lz5RNxdjOhdZp6CBef-USUUPmyNTrhww9a7u39W7PSI/edit?usp=sharing|Check list]], [[https://gokagra.slack.com/archives/C015M111B5G|slack]] '''<<Analysis is ongoing>>'''
-Line 54:
+Line 56:
-  * PTEP (3) : CAL, DET, PEM, GIF (Yokozawa) '''<<Referee comments>>'''
+  * PTEP (3) : CAL, DET, PEM, GIF (Yokozawa) '''<<Submitted>>'''
-Line 64:
+Line 66:
+   * Cleaning the center area
-Line 66:
+Line 69:
+   * Cooler ON, compressor ON, FFU ON, ...
-Line 68:
+Line 72:
-    * [[KAGRA/Subgroups/PEM/GNDmeeting|GND issue]]
     * We found new ground in the center area
     * We started the rack design with AEL people
    * cabling ([[https://github.com/gw-pem/kagra-pem/issues/204|github204]])
    * ondotori ([[https://github.com/gw-pem/kagra-pem/issues/205|github205]])
    * water fluid ([[https://github.com/gw-pem/kagra-pem/issues/207|github207]])
      * Discussion with Furuta-san & a company is started
    * read out of the lightning sensor ([[https://github.com/gw-pem/kagra-pem/issues/182|github182]])
    * Infrasound monitor @ Atotsu, Mozumi, (+ Toyama?)
    * RF monitor
    * tiltmeter
    * RI detector
      * Rn : contact person -> Guillaume Pronostさん (ICRR, SK)
      * cosmic-ray : plastic scintillator?
      * gamma/neutron : 新学術地下宇宙
      * start from a geiger counter?
    * gravity gradient (Newtonian noise)
      * Superconducting Gravimeter
      * TOBA
+   * [[KAGRA/Subgroups/PEM/GNDmeeting|GND issue]]
    * We measured the potential difference for SRM and PR2 rack
     * Need the investigation more
   * water fluid ([[https://github.com/gw-pem/kagra-pem/issues/207|github207]])
    * Discussion with Furuta-san & a company is started
     * When will company people come?
   * read out of the lightning sensor ([[https://github.com/gw-pem/kagra-pem/issues/182|github182]])
   * Infrasound monitor @ Atotsu, Mozumi, (+ Toyama?)
   * RF monitor
   * tiltmeter
   * RI detector
    * Rn : contact person -> Guillaume Pronostさん (ICRR, SK)
    * cosmic-ray : plastic scintillator?
    * gamma/neutron : 新学術地下宇宙
    * start from a geiger counter?
   * gravity gradient (Newtonian noise)
    * Accelerometer for wall
    * Relative temperature monitor
    * Many seismometers
    * Superconducting Gravimeter
    * TOBA
-Line 88:
+Line 94:
-    * Large speaker @ End station
    * Magnetic injection by large coil
+   * Large speaker @ End station
   * Magnetic injection by large coil
-Line 92:
+Line 98:
+ * Yokozawa
  * Potential difference measurement at SRM and PR2 racks
-Line 95:
+Line 102:
-     * Contact with Robert about LIGO PEM paper.
     * PRCL BPC lime subtraction : [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=14987|klog14987]]
+    * Contact with Robert about LIGO PEM paper.
    * PRCL BPC lime subtraction : [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=14987|klog14987]]
-Line 98:
+Line 105:
-     * Waiting a reply from the company.
+    * Waiting a reply from the company.